Currently using the orig 1450 lbs. Just wondering how much more i can go in the rear. was thinking of putting the front 650 in one of the rears to see how it fits. Anyone has an opinion? I had someone tell me to go with 650 in the rear and a 1150 in the front. I can see the 650 working in the rear but how will the 1150 work up front, just does not look like it would fit.